You might want to follow similar steps to what I suggested in this post – that other post was about the “multi-selected text colour” setting, but your stylers.xml and themes\DarkModeDefault.xml might be missing some of the recent style definitions, and the default it chooses with those undefined styles might not be compatible with your color choices.
So you basically need to compare the whole <GlobalStyle>...</GlobalStyle> section from your copies of those two settings files to the same section in stylers.model.xml, and copy over any lines that are missing from the stylers.model.xml version into your config files. Once you restart, you can use Style Configurator with either the default-theme or DarkModeDefault theme selected, and change the new colors to better match the colors you’re using for other things.